Q & A
갑자기 점심먹다가 궁금해졌습니다.
F1 머신들은 어떻게 시동을 거나요? 일반 차량들과 똑같이 스타트 버튼을 누르거나 키를 꽂고 돌리나요?
윗분 말씀에 조금 디테일을 추가한다면, 평범한 승용차는 엔진에 스타터모터라는 것이 달려 있습니다. 스타터모터는 저희가 키를 꼽고 시동을 걸때 말 그대로 시동을 걸리겠금 멈춰있는 엔진을 돌려주는 모터 입니다. 이런 모터는 근데 무게가 많이 나가고 시동 건 이후에는 불필요한 존재로 F1과 같은 포뮬러 차량에는 달려있지 않습니다. 그러하여 스타터 모터를 외부기기로 만들고 차뒤에서 엔진으로 꼽아 모터를 가동시켜 엔진을 돌려줍니다.
엔진을 운전온도로 올려놓아야하기에 온수를 순환시켜서 엔진을 한참 가열하고 나서야 시동을 걸 수 있다는 내용을 본 기억이 있습니다 수시간이 소요되는 작업이었습니다
냉간시 피스톤 등 기계부품 간극이 맞지 않아 냉간시동은 안된다고 봤습니다
F1 engines ARE warmed up on a computer program!!!!
Procedure (as far as I'm aware):
Connect computer.
Plug in fuel chiller for fuel cell (if necessary)
Plug in water (no antifreeze), and engine oil heater/ circulator.
Plug in gearbox oil heater/circulator
Raise temperature of fluids to approx 80 deg C, and hold there on each to allow expansion to correct tolerances and heatsoak.
Disconnect heaters.
Pressurise compressed air tank ( for the pneumatic valves).
Insert starter, and crank engine (ignition off), to ensure oil, air pressures etc reach set levels, while computer cycles through software checks.
Re-crank with ignition on, start engine and idle.
From here the engine / chassis tech can choose different engine & gearbox warm up maps, which can do it all, or they can use a little joystick to manually manipulate things. .
Generally the engines revs will be raised/lowered, and blipped to put load into the engine, as well as keep the alternator charging, as its designed to work for longer periods at much higher RPMs.
A lot of the mild blipping ( and what sounds like a spark cutting out) is the gearbox being cycled up and down through the gears, to get that up to temperature. In our cars we used to drag the brake pedal a little, to load up the drivetrain. The techs may also check the pit limiter function etc, and other things I can only imagine!
While at idle & elevated RPM, a dipstick reading will be taken of the engine oil tank, and any oil added if required. The water header tank will also be checked and purged if required.
Generally temperatures will be taken just above operating temperature prior to shutdown, to allow heatsoak into the radiators, for when the cars are fired up in anger.
That's what I understand anyway.......
Those vidoes of the Honda guys... well I know they love revving them right up prior to shut off, as the Formula Nippon guys used to do this too. It's not necessary, it but it really doesn't hurt the engines, there are precision built, and only have short service lives anyway, unlike road cars and bikes. Also, I think they put on a bit of a show for the spectators.
As for idle, revving then idle, I don't know, but we all seem to do it! Must be in a racers' DNA!
As for running in the engines, its largely redundant, as they are built so precisely. On the dyno, I guess it wouldn't take any more than 10 minutes at moderate revs to seat the piston rings. A couple of power checks through the rev range at various loads, and it would be good to go I would think.
저도 궁금해서 찾아봤습니다 ㅎㅎ
유튜브에 동영상도 많이 있네요
넣고 빼는건 봤는데. 근데 여기서 궁금하던게 그럼 F1드라이버들은 운전하다가 시동 꺼질일은 없는건가 라는 생각을 했습죠....(꼭 출발 시동 꺼트림이 아니더라도 사고라던가 스핀이라던가 여러 이유로 있잖아요..)
스타트모터를 똥꼬에 꽂아서 돌리는거에 추가하면 엔진오일을 바꿔줍니다. 엔진 간극 문제 때문에 뜨거운 엔진오일을 넣어서 시동걸어주고 시동 걸리면 다시 엔진오일 바꿔주는 것으로 알고 있습니다
뒤쪽에 스타터 연결해서 시동걸고 뺍니다
유투브에 검색하면 영상도 있을거에요